21, Southdene, Monkstown, Co Dublin
Attic conversion with a rear dormer window and construction of a single-storey side extension.
D21B/0158 · Dun Laoghaire Rathdown County Council · Lodged 1 April 2021
- Reference
- D21B/0158
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 1 April 2021
Summary
AI-generatedThe application seeks permission to convert the attic into a study and playroom, featuring a dormer window to the rear and a front rooflight. It also includes the construction of a single-storey flat-roof extension to the side of the existing house.
- Storey
- 1
Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.
Official record
Development description
Permission for the conversion of the attic into study/playroom with a dormer window to the rear, rooflight to front, single storey flat roof extension to the side of existing including all associated site works
Land-use zoning
What this land is zoned for
“A To provide residential development and improve residential amenity while protecting the existing residential amenities”
Objective set by the COUNTY DEVELOPMENT PLAN 2022-2028 (2022–2028). The planning authority decides each application on its own merits — this is the zoning context, not a compliance assessment.
Read the zoning objectives in the development planBuilt & sold
What happened next
Beyond the decision: whether this development was built, and what property here has sold for.
Built — construction complete
A commencement notice records works starting on 16 July 2021.
Notified floor area: 17.75 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 16 Southdene, Monkstown Valley, Monkstown | Jun 2026 | €630,000 | 23 m |
| 18 Beauparc Downs, Monkstown Valley, Dublin | May 2025 | €495,000 | 77 m |
| 17 Beauparc Downs, Monkstown Valley, Monkstown | Feb 2026 | €550,000 | 77 m |
| 1beauparc Downs, Monkstown Valley, Monkstown | Dec 2025 | €400,000 | 91 m |
| 4 Drayton Close, Monkstown Rd, Monkstown | Feb 2026 | €612,000 | 96 m |
| 1 Arundel, Monkstown Valley, Monkstown | Jan 2025 | €1,080,000 | 100 m |
| 4 The Beeches, Monkstown Valley, Monkstown | Jul 2025 | €648,000 | 108 m |
| 11 Arundel, Monkstown Valley, Monkstown | Oct 2025 | €695,000 | 127 m |
Nearby properties, not this site — a guide to local values.
Sources: Building Control Management System (commencement notices) and the Residential Property Price Register, licensed under CC BY 4.0. Records are matched to this application by location and may not be exhaustive; always confirm against the official source before relying on them.
Key dates
Timeline
- Application received1 April 2021
- Decision issued21 May 2021
Related developments
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Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
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Community
Discussion
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